1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

20000Hz

Sony MDR-Z1R: 120000Hz

22000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

10Hz

Sony MH1CBLK: 1Hz

16Hz

3. has sound isolation/passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

Marshall Monitor

Sennheiser Momentum Wireless

44% have it

4. impedance

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.

42 Ohms

Flips Solo 2 Social: 4 Ohms

28 Ohms

5. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

99dB/mW

AKG K553 Pro: 144dB/mW

113dB/mW

6. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

Marshall Monitor

Sennheiser Momentum Wireless

39% have it

7. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

Marshall Monitor

Sennheiser Momentum Wireless

76% have it

8. can be folded

Folding devices are good for transporting as they take up less space in your bag.

Marshall Monitor

Sennheiser Momentum Wireless

31% have it

9. can be used as a headset

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.

Marshall Monitor

Sennheiser Momentum Wireless

47% have it

10. has active noise cancelling (noise reduction)

This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.

Marshall Monitor

Sennheiser Momentum Wireless

15% have it

11. Can be used wirelessly

Wireless devices allow users more freedom of movement.

Marshall Monitor

Sennheiser Momentum Wireless

27% have it

12. has an in-line control panel

There is a control panel on the cable, so you can easily operate the device without having to interact with it.

Marshall Monitor

Sennheiser Momentum Wireless

47% have it

13. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.

Marshall Monitor

Sennheiser Momentum Wireless

39% have it

14. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.

15. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.

Marshall Monitor

Sennheiser Momentum Wireless

64% have it

16. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.

Marshall Monitor

Sennheiser Momentum Wireless

48% have it

17. has an L-shaped plug

An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.

Marshall Monitor

Sennheiser Momentum Wireless

30% have it

18. number of microphones

More microphones result in better sound quality and enable the device to filter out background noise.

1

Parrot Zik Sport: 8

6

19. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

Marshall Monitor

Sennheiser Momentum Wireless

80% have it

20. has a rechargeable battery

The battery can be recharged and used over again.

Marshall Monitor

Sennheiser Momentum Wireless

21% have it

21. cable length

A long cable ensures more freedom of movement.

1m

Pioneer SE-A1000: 6m

1.4m

22. has a coiled cord

A coiled cord typically offers more flexibility as it can be extended, and taken outside for example.

Marshall Monitor

Sennheiser Momentum Wireless

7% have it

23. has a noise canceling microphone

These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.

Marshall Monitor

Sennheiser Momentum Wireless

5% have it

24. supports Bluetooth pairing using NFC

Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.